{"nct_id":"NCT00256932","title":"Treatment Of Constipation Due To Opioids Being Taken For Persistent Non-Cancer Pain","status":"COMPLETED","status_verified_date":"2011-12","start_date":"2005-08","start_date_type":null,"primary_completion_date":null,"primary_completion_date_type":null,"completion_date":"2006-05","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}